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[v14,12/12] fs/ioctl: Add a comment to keep the logic in sync with LSM policies

Message ID 20240405214040.101396-13-gnoack@google.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Landlock: IOCTL support | expand

Commit Message

Günther Noack April 5, 2024, 9:40 p.m. UTC 
Landlock's IOCTL support needs to partially replicate the list of
IOCTLs from do_vfs_ioctl().  The list of commands implemented in
do_vfs_ioctl() should be kept in sync with Landlock's IOCTL policies.

Suggested-by: Paul Moore <paul@paul-moore.com>
Suggested-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Günther Noack <gnoack@google.com>
---
 fs/ioctl.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/fs/ioctl.c b/fs/ioctl.c
index fb0628e680c4..64776891120c 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -796,6 +796,9 @@  static int ioctl_get_fs_sysfs_path(struct file *file, void __user *argp)
  *
  * When you add any new common ioctls to the switches above and below,
  * please ensure they have compatible arguments in compat mode.
+ *
+ * The LSM mailing list should also be notified of any command additions or
+ * changes, as specific LSMs may be affected.
  */
 static int do_vfs_ioctl(struct file *filp, unsigned int fd,
 			unsigned int cmd, unsigned long arg)